Version 1.4.0 release candidate 1

• Raise error if server received windows path
• Update sentry key
• Remove NIO FIFO and Mcast (unused). Fixes #348.
• Support VPCS 0.6.1
• Fix duplicate of -no-kvm options
• Raise an error if user send a non local path to remote server
• Fix minor issues
• Apply pep8 fix
• Sets console end port to 7000. Fixes #343.
• Drop netifaces (replaced by psutil). Fixes #344.
• Correctly display log messages.
• Tentative fix for "WinError 64 The specified network name is no longer available" issues.
• Return relative path for dynamips images
• Fix add existing IOS not working
• Correctly enable faulthandler for dev version
• Avoid test crash if GNS3 is running on the same computer
• Allow to return an empty project name because it's allowed in creation
• Test with python 3.5
• Add doc on how to got code coverage